Machinery for making cop-tubes



' 3 sheets-sheet- 1.-

N. WHITMO'RE.

Making Cop Tubes.

'Patented June 12,'147;

' 3 Sheets-Sheet 2*; p N. WHITMGRE.

Making Cop Tubes. f

Patented June 12; 1847.`

Gx @4r 3 sheets-sheet f'3.

N. WHITMORE.

Making Copl Tubes.

Patented June 12. 134.7.

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UNTTED sTATEs PATENT oEEIoE. Y I

NATHANIEL WHl'lMORE, OF LYNN, MASSACHUSETTS.

MACHINERY FOR MAKING COP-TUBS.

Specification of Letters Patent No. 15,157, dated J une 12, 1847.

. Fig. 2 is an elevation of one side ofit. Fig.

3 is an elevation of one or the front end of it. Fig. 4 is a vertical,central and longitudinal section of it. Fig. 5 isa plan or view of themachinery attached to the underside of the bed plate of the frame. y

Such other figures as may be necessary to fully exhibit the variousparts of the mechanism will be hereinafter mentioned rand de'- scribed.l

The article which my machineis intended to make is exhibited inelevation in Fig. 6 which denotes a perspective viewof it. It consistsof a small tube a of metal having a projecting rim b. When used it isplaced on the spindle on which a cop is to be spun (the spindle beingpassed through it) and the cop is formed or wound on the tube. -Itserves to support the cop when removed from the spindle. Y Y

The machine aforementioned manufactures the said tubes successively froma long strip or plate of metal which is fed into the dies by means whichwill be hereinafter Vexplained. The elements of the machine are: First,the dies or shears for cutting a portion from the strip, of metalsuilicient in length to be made into a tube. Second, the mechanism bywhich the strip is partly bent into a tubular shape. Third, themechanism by which the said tubular shape is further produced andcompleted. Fourth, the mechanism by which the head or lip b is made.

Fifth, the mechanism by which the lower edge or end of the tube issupported while the head or lip b is being made. Sixth, the mechanism bywhich the tube is ejected or forced out of the machine after being made.Seventh, the apparatus by which the strip of metal is fed into the diesas fast as may be necessary.

The main parts of the said machinery are sustained in their properpositions by means of a suitable' metallic frame A raised upon a bed orplate B. A horizontal driving shaft C'is sustained in boxes or bearingsD, D, and gives mot-ion to a vertical shaft E by means of two beveledgears F, Gr, appliedA to them as seen in the drawings. The shaft vE issustained and rotates in boxes or bearings H, H, and is put in motion byany proper power suitably applied to it. The tube during the'process' ofbeing formed is bent around a vertical spindle or punch I,

which passes down and vmoves through and is susta1ned 1n position by astationary strutor bearing J which projects over vthe dies. The saidspindle l is connected with one end of a long lever Lby means of a ylink.M which is jointed both to the upper end of the spindleV and to one endof the lever. The said lever passes through an adjusting block or pieceof metal N which vibrates at its lower end upon a pin O asa fulcrum forthe lever. The passage way through the said block N is providedwithwedges P, Q, and a set screw'R arranged with respect to the lever asseeninthe drawings, the same being for the purpose of ad-v justing thespindle toits true position with respect to the'dies so as to enable .itto turn over or form the lip b of the cop tube atthe proper time. j

The first element of the mechanism to be described is that by which aportion'of the strip of metal suiiicient in length to be formed into atube'is severed or cut from the said strip. The same consists of threeVdies or cutting plates S, T, U, a horizontal section of which isexhibited in Fig. 7, which alsoshows the cam by which the centraly ormovable die is thrown forward between the two other dies S, and T. Vdenotes the strip of metal from which the tubesl are to be made. The twodies S, and

T consist of two parallel and vertical plates made stationary 1nposition and placed ata distance apart corresponding to the length ofthe pieceof metal to be severed from the strip and having suitableadjustments, ap-

them and afterward to recede and depart from their cutting edges asufficient-distance to allow of the strip V, V'to be passed/or movedbetween its (the die Us) face and the said cutting edges as seen in Fig.7. The horizontal width of the die U, corresponds to the distancebetween the two plates or dies S, T. The die U is secured to the end ofa slide bar W, which is sustained in a proper manner and made to movefo-rward and backward in a longitudinal direction.

It is thrown forward, in order to cause the die U to pass between thedies S and T by a cam X placed upon t-he shaft E and is afterwardretroceded by a spring Y. A small groove a, is made vertically in andthrough the inner face of the die S. A similar groove ZJ is made in theinner face of the die T as Seen in the drawings. The die U is caused vtoadvance far enoughto force the piece of metal severed from the strip V,into the space between thefsaid grooves a', t', so that on the recessionof the first bendingdie from under the said piece it may drop downwardbetween the said bending die and the spindle I.

Fig. 8 exhibitsa horizontal section of the bending dies which constitutethe nexttwo elements of my machine. lThe said figure.`

also represents in part the mechanism .by

which motion is given to the saidY dies. T-he central or lirst bendingdie which is denoted by the letter c, is placed with respect -to thespindle Iand the two other dies d, e, asv represented in Fig. 8. Itconsists of a block or bar ofmetal having its front end hol-l turn orbend over or form `the lip b, of the tube. This is effected at theproper time by` plane w, which is made lowed out in a semi-circularshape.

A front elevation of the hollowed end of the die is given in Fig. 9. Ata short dis-g tance below the top surface or edge of the said die thesemicircular hollow is suddenly,4

contracted as seen at f, f, and then continues downward somewhatsmaller, than it isL above the shoulder or part f, f, the same beingexhibited in the drawings.

The radius of the semicircular part g corresponds to thatV of theexterior curve ofiV the lip b of the tube, while the radius of.

theipart h, isequal to that of the exterior surface of the said Itube.

the die c forces the piece z' severed from the strip V, should be madeequal to that of the interior of the tube, while that part of thespindle which is above t-he die, should be vmade of a diameter equal tothat of the ,part4 g, ofthe hollow of the die, the said spindle beingmade with a shoulder la, and in other respects as seen in the elevationcf it in Fig. l0. The bending die c, is thrown fcry As soon as this iseffected, the other diesd, e, are moved toward the spindle I, and

Y complete Vthe lbending of thepiece into a tuin rectilinear directions.

`The diameter ofV that part of the spindle I, against which.

bular shape around the spindle. The inner corner of each of said dies d,e, is hollowed out into a quadrant of a circle and in other respectslikethe die c.

Fig. l2 denotes a horizontal section of the three dies c, d, and e, asthey appear when forced against the piecei. The lateral vdies al and e,are properly supported so as to freely slide toward and from each otherThey are respectively jointed to levers Z, m', having their flulcrum atn, o, and beingjointed to two toggles or progressional levers p, g.A Thesaid toggles are jointed to a pitman or slide 7". The front end of thesaid pitman is attached to a projection s, which extends upward from aslide bar. t, see Figs. 4 and 5, which slide bar is thrown forward, at apro-per time (in order to cause the mechanism intervening `between itand the dies ci, e to operate and force the dies toward each other) bya'cam u fixed on :the lower end `of the shaft E. The retraction of theslide bar t, is effected by a spring Q; connected to it and the bedplate of .the frame.

The dies c, d, e, being closed upon theV 'spindle I, the next operationis to forcethe latter downward, in such manneras to introduce itsshoulder le, intothe hollow g, of the die c and corresponding hollowso'f the iother dies d, e, and force it (the shoulder) toward theoffsetf, f,`in such manner as to orend of the tube or piece z' is supported,or

upon which it rests while the spindle descends and makes the lip b ofthe tube. The said mechanism consist-s of two slide bars seen moreparticularly in Figs. 13 and '14,

Vthe `fo-rmer being a vertical section of the spindle I, and saidslides, and the latter being a horizontal section through them. The saidbars are placed directly beneath the dies, c, al, and e, and are movedup laterally against the lower 4part of the spindle I. The

inner ends of the bars are respectively holl lowed out in aysemicircular form to t closely against the spindle, f and when broughttogether thetube piece a', rests upon them as seen in Fig. 13. rIhey arekept closed upon the. spindle .during the time the tube is being madeand as soon as -this isA effected, they should fbe caused to divergefrom each other and the spindle in such manner as to allow the tube ltobe forced 5.157'A Y j from the spindle or expelled ,from the machine bythe mechanism, which effects its ex-V pulsion. The said slide bars m, y,should be properly supported so as tol slide freely back and forthlongitudinally.V They are l respectively jointed at their outer ends totwo levers, a2, b2 whose fulcra are at c', d. The said levers arejointed to two togofles e, f, which are themselves jointed to a s idebar or pit-man g who-se front end is placed against a cam L fixed Aupo-nthe shaft E. When the slide pitman is forced rearward by the cam itdraws the outer ends of the toggles toward each other and by so doingacts upon the levers a2, b2 in such manner as to cause t-he supportingslides m, y, to depart from one another and the spindle I, in the mannerand for the purpose as before described. Each lever a2, b2 has a springapplied to it in such manner as to cause the levers and slides y, toreturn to their former positions, after the cam h has ceased to act onor force back the pitman slide g, and the expulsion of the tube has beeneffected.

The next portion of the mechanism to be explained is that by which thetube is ejected or forced out of the machine after it is made. Thisconsists ofy a small nger or rod of metal 7c', havingits lower endcurved and made sharp or angular as'seen in Fig. 4. It is jointed at itsupper end to the front end of a bent lever Z whose fulcrum is at mQ-inthe ,top of a small post n. The said finger c, is forced against thespindle I by two springs 0,'p. The rear end of the lever Z rests in thecrotch of a forked post g, and upon thebottom of said crotch, and isdrawn down thereupon by a spring .1" which is connected to this lever bya jointed link s. A stud orL pin t is inserted in and' projects from theside of the beveled gear` E, and at a proper time during the revolutionof said gear, it meets the underside of the rear bent end of the lever Zand lifts it up, and bysovdoing causes a depression of the front end ofsaid lever, Vand the finger attached thereto. When said linger descendsit comes in contact with the tube just previously made on the spindleand forces it o the spindle and causes it to drop out of the machine.

The succeeding and last portion of the mechanism to be described is thatby which the strip of met-al is fed into the machine as fast as may benecessary. o is a pair of pincers supported upon and by a small carriagew which slides upon a xed horizontal square or other proper shaped baror rod m extending from a post y to the strut which supports the spindleI. A section of the said pincers is represented in Fig. 15. Their jawsare forced asunder byv a spring z placed between their arms a3, b3. Aforked pitman c2 made as seen in the drawings-re= ceives into its forkthe upper ends of the@ pincers and acts upon them in such manner thatwhen forced against them it willpress w the arms a3, b3 toward eachother and thereby cause the jaws of the pincers to grip` the strip oflmetal V, which is inserted'between them. The forked pitman o2 passes andmoves through a bearing d2 (projecting rear part of the lever e2 beingrepresented yin Fig. 1, by dotted lines. At a proper time during t-herevolution of the shaft E the kcam g2 meets the rear end of the lever e2and forces it outward thus causing the lever to .turn on its fulcrum andpress the forked pitman against t-he pincers so as to close them tightlyupon the strip V. At the same time `an arm Z2 projecting down from thepitman meets or comes in contact with the carriage which supports thepincers and causes it and them to advance toward the dies, and carry ormove forward the strip of metal the distance required for the cuttingdies to remove from it a piece of metal sufficient in length to makev atube. The carriage and pincers are afterward retracted by thecontractile power of two springs h2, 2 the former being connected to thelever e2 and the frame A, and the latter to the carj y riage of thepincers orto an arm 702 projecting therefrom.

Although I have described the mechanism which I employ to operate thevarious elementary parts ,of my vmachine for making cop tubes, I do notintend to confine myself strictlyto the employment of such nor do"l Iint-end to limit myself to the precise forms:`

or shapes of the parts above represented and explained, but I mean toavail myself of such modes of operating the said elements as occasionmay require, while I do not change the combinations I herein consider asof my invention. And having setforth the nature of my machineV and themanner in which it operates I shall now proceedV bars y, in combinationwith the bending'V dies, lip dies andv spindle, the same being arrangedand made to operate substantiallyV as specified.

3.*,I also claim an automatic combinatioh of a feeding apparatus,cutting dies, bending and heading or lip dies, and spindle,

either with or Without the supporting slides my signature this secondVday of January, y, or with or Without the expelling appa- A. D. 184:7.

ratus or finger, the Whole bein arranged and made to operate together igthe man- NATHANIEL WHITMORE' ner and for the purpose substantially asWitnesses: above specified. R. H. EDDY,

In testimony whereof I have hereto set S. W. WALDRON, Jr.

